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Project-declaredLean 4.29.0-rc6

Vitali covering lemma

DeGiorgi.vitali_covering_lemma

Project documentation

Vitali covering lemma (5r-covering): from any family of balls, one can extract a disjoint subfamily such that the 5Ɨ enlargements cover the union, and every original ball meets a selected ball of at least half its radius.

partial differential equationsregularity theoryanalysis

Source project: DeGiorgi

Person-level attribution pending.

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